If adrenaline is your thing, Shimano's SLX 20mm through-axle hub is built for you. This rock-solid hub features smooth-rolling and easy to service cup-and-cone bearings. The stout design minimizes fork flex, improves steering precision and builds into a super-solid wheel, perfect for today's long-travel forks. All-mountain durability ensures that whether you're hammering or sticking sick landings this robust hub will hold up ride after ride. Plus, Shimano's Center Lock spline makes mounting the disc-brake rotor super easy, too.